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================================================================== BUG: KCSAN: data-race in can_rcv_filter / can_rcv_filter read-write to 0xffff888101e47518 of 8 bytes by interrupt on cpu 0: deliver net/can/af_can.c:573 [inline] can_rcv_filter+0x171/0x4e0 net/can/af_can.c:590 can_receive+0x182/0x1f0 net/can/af_can.c:663 canfd_rcv+0xe3/0x180 net/can/af_can.c:702 __netif_receive_skb_one_core net/core/dev.c:5482 [inline] __netif_receive_skb+0x8b/0x1b0 net/core/dev.c:5596 process_backlog+0x23f/0x3b0 net/core/dev.c:5924 __napi_poll+0x65/0x390 net/core/dev.c:6485 napi_poll net/core/dev.c:6552 [inline] net_rx_action+0x37e/0x730 net/core/dev.c:6663 __do_softirq+0xf2/0x2c7 kernel/softirq.c:571 run_ksoftirqd+0x1f/0x30 kernel/softirq.c:934 smpboot_thread_fn+0x308/0x4a0 kernel/smpboot.c:164 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 read-write to 0xffff888101e47518 of 8 bytes by interrupt on cpu 1: deliver net/can/af_can.c:573 [inline] can_rcv_filter+0x171/0x4e0 net/can/af_can.c:590 can_receive+0x182/0x1f0 net/can/af_can.c:663 canfd_rcv+0xe3/0x180 net/can/af_can.c:702 __netif_receive_skb_one_core net/core/dev.c:5482 [inline] __netif_receive_skb+0x8b/0x1b0 net/core/dev.c:5596 process_backlog+0x23f/0x3b0 net/core/dev.c:5924 __napi_poll+0x65/0x390 net/core/dev.c:6485 napi_poll net/core/dev.c:6552 [inline] net_rx_action+0x37e/0x730 net/core/dev.c:6663 __do_softirq+0xf2/0x2c7 kernel/softirq.c:571 run_ksoftirqd+0x1f/0x30 kernel/softirq.c:934 smpboot_thread_fn+0x308/0x4a0 kernel/smpboot.c:164 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 value changed: 0x0000000000004729 -> 0x000000000000472a Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 6.1.0-syzkaller-14594-g72a85e2b0a1e-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 ================================================================== ================================================================== BUG: KCSAN: data-race in can_rcv_filter / can_rcv_filter read-write to 0xffff888101e47a18 of 8 bytes by interrupt on cpu 0: deliver net/can/af_can.c:573 [inline] can_rcv_filter+0x171/0x4e0 net/can/af_can.c:590 can_receive+0x182/0x1f0 net/can/af_can.c:663 canfd_rcv+0xe3/0x180 net/can/af_can.c:702 __netif_receive_skb_one_core net/core/dev.c:5482 [inline] __netif_receive_skb+0x8b/0x1b0 net/core/dev.c:5596 process_backlog+0x23f/0x3b0 net/core/dev.c:5924 __napi_poll+0x65/0x390 net/core/dev.c:6485 napi_poll net/core/dev.c:6552 [inline] net_rx_action+0x37e/0x730 net/core/dev.c:6663 __do_softirq+0xf2/0x2c7 kernel/softirq.c:571 run_ksoftirqd+0x1f/0x30 kernel/softirq.c:934 smpboot_thread_fn+0x308/0x4a0 kernel/smpboot.c:164 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 read-write to 0xffff888101e47a18 of 8 bytes by interrupt on cpu 1: deliver net/can/af_can.c:573 [inline] can_rcv_filter+0x171/0x4e0 net/can/af_can.c:590 can_receive+0x182/0x1f0 net/can/af_can.c:663 canfd_rcv+0xe3/0x180 net/can/af_can.c:702 __netif_receive_skb_one_core net/core/dev.c:5482 [inline] __netif_receive_skb+0x8b/0x1b0 net/core/dev.c:5596 process_backlog+0x23f/0x3b0 net/core/dev.c:5924 __napi_poll+0x65/0x390 net/core/dev.c:6485 napi_poll net/core/dev.c:6552 [inline] net_rx_action+0x37e/0x730 net/core/dev.c:6663 __do_softirq+0xf2/0x2c7 kernel/softirq.c:571 run_ksoftirqd+0x1f/0x30 kernel/softirq.c:934 smpboot_thread_fn+0x308/0x4a0 kernel/smpboot.c:164 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 value changed: 0x00000000000015da -> 0x00000000000015dc Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 6.1.0-syzkaller-14594-g72a85e2b0a1e-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 ==================================================================
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022/12/25 08:12 | upstream | 72a85e2b0a1e | 9da18ae8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in can_rcv_filter / can_rcv_filter | ||
| 2022/12/08 23:19 | upstream | 479174d402bc | 1034e5fa | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in can_rcv_filter / can_rcv_filter | |||
| 2022/11/24 10:51 | upstream | 4312098baf37 | ff68ff8f | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in can_rcv_filter / can_rcv_filter |